The MPLS WG Archive

[Bob Thomas <rhthomas@cisco.com>]

Vach,

> Suppose A sends out a Hello with hold time of 30 seconds on an ethernet
> interface.  B and C respond, with Hello hold time 20 and 15, respectively.
> What is the final hold time in hellos sent out by A?
>  - 15 seconds?  You keep taking the minimum, and B has to adjust down also,
> since B and C will also form an adjacency?

Yes.

>  - 20 seconds with a reject to C, assuming B's hello got to A first?  Why
> deny C and all who follow?
>  - 30 seconds, despite B's hello hold time?  That's not what the draft says
> (although one email in the archive suggests that is the answer).
> 
> I'm assuming that A continues to send only one hello message to the
> multicast group.

Yes.

RFC3036 does not explicitly address this case.  That was probably
an oversight.


Bob